From patchwork Fri May 26 17:35:28 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andre Przywara X-Patchwork-Id: 9750887 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id EA2486032C for ; Fri, 26 May 2017 17:37:53 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id DBD72281B7 for ; Fri, 26 May 2017 17:37:53 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id D0A6028417; Fri, 26 May 2017 17:37:53 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.2 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 55531281B7 for ; Fri, 26 May 2017 17:37:53 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1dEJ9u-0005Zg-Az; Fri, 26 May 2017 17:36:18 +0000 Received: from mail6.bemta6.messagelabs.com ([193.109.254.103]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1dEJ9t-0005Rk-6l for xen-devel@lists.xenproject.org; Fri, 26 May 2017 17:36:17 +0000 Received: from [193.109.254.147] by server-9.bemta-6.messagelabs.com id 65/77-03557-09768295; Fri, 26 May 2017 17:36:16 +0000 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFrrGLMWRWlGSWpSXmKPExsVysyfVTXdCuka kwf0v8hbft0xmcmD0OPzhCksAYxRrZl5SfkUCa8aGGatZCm7xVNzfvoaxgfE7ZxcjF4eQwCZG iZ2Hm5ggnOWMEv/aX7N3MXJysAnoSuy4+ZoZxBYRCJV4uuA7M0gRs8AaRon2T09Zuxg5OIQFL CQWzkwAqWERUJXY+WsjK4jNK2Aj8aq3C2yOhICcRMP5+2BzOIHis85+ZgKxhQSsJd5s/c46gZ F7ASPDKkb14tSistQiXRO9pKLM9IyS3MTMHF1DAzO93NTi4sT01JzEpGK95PzcTYxA/zIAwQ7 G7sv+hxglOZiURHmnr1OPFOJLyk+pzEgszogvKs1JLT7EKMPBoSTBOylNI1JIsCg1PbUiLTMH GGgwaQkOHiUR3nkgad7igsTc4sx0iNQpRkUpcd4gkIQASCKjNA+uDRbclxhlpYR5GYEOEeIpS C3KzSxBlX/FKM7BqCTMywQyhSczrwRu+iugxUxAi33PqYMsLklESEk1MC5Y1f5aybYnInTHfM Wf7htyzK8ZTJvJP7uJrWyJuuie3gd12UqvPf2/tK7XFTFUvnEivGahLeOuupzTX05MUFjMvUb ceWnZg9L5itu97v3auS9X53+JhftWse7GJacnpcdHnmD7I5iZLjpj3683i+Z8FY77fPFLqvu/ 2hWrWqcdLIj3V5i0/7oSS3FGoqEWc1FxIgBxLr0WaQIAAA== X-Env-Sender: andre.przywara@arm.com X-Msg-Ref: server-7.tower-27.messagelabs.com!1495820176!100031552!1 X-Originating-IP: [217.140.101.70] X-SpamReason: No, hits=0.0 required=7.0 tests= X-StarScan-Received: X-StarScan-Version: 9.4.19; banners=-,-,- X-VirusChecked: Checked Received: (qmail 18622 invoked from network); 26 May 2017 17:36:16 -0000 Received: from foss.arm.com (HELO foss.arm.com) (217.140.101.70) by server-7.tower-27.messagelabs.com with SMTP; 26 May 2017 17:36:16 -0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id CD0D780D; Fri, 26 May 2017 10:36:15 -0700 (PDT) Received: from e104803-lin.lan (unknown [10.1.207.46]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 9442F3F53D; Fri, 26 May 2017 10:36:14 -0700 (PDT) From: Andre Przywara To: Julien Grall , Stefano Stabellini Date: Fri, 26 May 2017 18:35:28 +0100 Message-Id: <20170526173540.10066-21-andre.przywara@arm.com> X-Mailer: git-send-email 2.9.0 In-Reply-To: <20170526173540.10066-1-andre.przywara@arm.com> References: <20170526173540.10066-1-andre.przywara@arm.com> Cc: xen-devel@lists.xenproject.org, Vijaya Kumar K , Vijay Kilari , Shanker Donthineni Subject: [Xen-devel] [PATCH v10 20/32] ARM: vITS: handle INT command X-BeenThere: xen-devel@lists.xen.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" X-Virus-Scanned: ClamAV using ClamSMTP The INT command sets a given LPI identified by a DeviceID/EventID pair as pending and thus triggers it to be injected. Signed-off-by: Andre Przywara Reviewed-by: Julien Grall --- xen/arch/arm/vgic-v3-its.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/xen/arch/arm/vgic-v3-its.c b/xen/arch/arm/vgic-v3-its.c index 8f4a9e1..80a4625 100644 --- a/xen/arch/arm/vgic-v3-its.c +++ b/xen/arch/arm/vgic-v3-its.c @@ -286,6 +286,24 @@ static uint64_t its_cmd_mask_field(uint64_t *its_cmd, unsigned int word, #define its_cmd_get_validbit(cmd) its_cmd_mask_field(cmd, 2, 63, 1) #define its_cmd_get_ittaddr(cmd) (its_cmd_mask_field(cmd, 2, 8, 44) << 8) +static int its_handle_int(struct virt_its *its, uint64_t *cmdptr) +{ + uint32_t devid = its_cmd_get_deviceid(cmdptr); + uint32_t eventid = its_cmd_get_id(cmdptr); + struct vcpu *vcpu; + uint32_t vlpi; + + if ( !read_itte(its, devid, eventid, &vcpu, &vlpi) ) + return -1; + + if ( vlpi == INVALID_LPI ) + return -1; + + vgic_vcpu_inject_irq(vcpu, vlpi); + + return 0; +} + #define ITS_CMD_BUFFER_SIZE(baser) ((((baser) & 0xff) + 1) << 12) #define ITS_CMD_OFFSET(reg) ((reg) & GENMASK(19, 5)) @@ -315,6 +333,9 @@ static int vgic_its_handle_cmds(struct domain *d, struct virt_its *its) switch ( its_cmd_get_command(command) ) { + case GITS_CMD_INT: + ret = its_handle_int(its, command); + break; case GITS_CMD_SYNC: /* We handle ITS commands synchronously, so we ignore SYNC. */ break;